These sound like fixable things
Depending on price, I would not automatically pass this boat by. The leaks may not be hard to fix, but a lot depends on whether this is a Day Sailer I or a Day Sailer II or III. The DS I is all open and so access to repair a crack in the CB trunk is pretty good, on the DS II (or III) the cockpit is molded in and so access to all but the forward 12" or the trunk is hard without cutting an access panel.The HIN (Hull I.D. Number) will be on the outside of the transom for a boat built after Nov. 1, 1972 (mine is dead-center on the outside of the transom) the HIN will look like "XDYDxxxx0974 or XDYDxxxxM75B. XDY = O'Day. D = Day Sailer (no difference DS I or II), xxxx = Class# (also called hull#), and 0974 or M75B mean that the boat was built in Sept. 1974 (M75 = 1975 model year). If this boat was built before Nov. 1, 1972 there will be a metal plate with 2 numbers on it, located on the inside of the transom or the forward flotation tank. The 2 numbers will be a "Hull#" and a "Class#" (not to be confused with above). The Hull# refers to total number of O'days built, Class# refers to the number of Day Sailers built. This Class# is the same as the Class# mentioned for post 1972 boats.